* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: var(--font-size);
  background: var(--bg);
  color: var(--text);
  transition: background .2s, color .2s;
}

body { min-height: 100vh; display: flex; flex-direction: column; }

.app-header {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 12px 20px;
  background: var(--header);
  color: #fff;
  flex-wrap: wrap;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.brand h1 { font-size: 16px; font-weight: 600; letter-spacing: .2px; }
.brand-sub { font-size: 11px; opacity: .55; margin-top: 2px; }

.main-nav {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.nav-tab {
  background: rgba(255,255,255,.05);
  color: rgba(255,255,255,.7);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 20px;
  padding: 5px 14px;
  font-size: 12px;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
}
.nav-tab:hover { background: rgba(255,255,255,.1); color: #fff; }
.nav-tab[aria-selected="true"],
.nav-tab.active {
  background: #fff;
  color: var(--header);
  border-color: #fff;
}

.header-actions { margin-left: auto; display: flex; gap: 6px; }
.icon-btn {
  background: none;
  border: 1px solid rgba(255,255,255,.22);
  color: rgba(255,255,255,.8);
  border-radius: 6px;
  padding: 5px 11px;
  cursor: pointer;
  font-size: 12px;
  font-family: inherit;
}
.icon-btn:hover { background: rgba(255,255,255,.1); color: #fff; }
.icon-btn.active { background: rgba(255,255,255,.18); color: #fff; border-color: rgba(255,255,255,.5); }
.icon-btn.edit-on { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }

.page-root {
  flex: 1;
  padding: 0;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
}

.page-loading, .page-empty {
  padding: 60px 20px;
  text-align: center;
  color: var(--text-3);
  font-size: 13px;
}

.toast-root {
  position: fixed;
  bottom: 16px;
  right: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 9999;
  pointer-events: none;
}
.toast {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0,0,0,.15);
  font-size: 12.5px;
  max-width: 340px;
  pointer-events: auto;
  animation: toast-in .2s ease-out;
}
.toast.error { border-left-color: var(--danger); }
.toast.success { border-left-color: var(--success); }
.toast.warn { border-left-color: var(--warn); }
@keyframes toast-in { from { transform: translateY(10px); opacity: 0; } to { transform: none; opacity: 1; } }

@media (max-width: 760px) {
  .app-header { gap: 10px; padding: 10px 12px; }
  .brand h1 { font-size: 14px; }
  .brand-sub { display: none; }
  .header-actions { margin-left: 0; width: 100%; justify-content: flex-end; }
  .page-root { padding: 0; }
}

/* ----- PWA: install button, update banner, standalone & safe-area ----- */

/* Respect iOS notches and Android navigation bars when installed. */
.app-header {
  padding-left:  max(20px, env(safe-area-inset-left));
  padding-right: max(20px, env(safe-area-inset-right));
  padding-top:   max(12px, env(safe-area-inset-top));
}
.page-root {
  padding-left:  env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
  padding-bottom: env(safe-area-inset-bottom);
}

/* Install button — same look as other icon-btns but accented to draw attention. */
.pwa-install-btn {
  background: linear-gradient(135deg, #0ea5e9, #38bdf8) !important;
  color: #fff !important;
  border-color: rgba(255,255,255,.5) !important;
  font-weight: 600 !important;
}
.pwa-install-btn:hover {
  filter: brightness(1.1);
}

/* Update-available banner — pinned bottom-right, subtle. */
.pwa-update-banner {
  position: fixed;
  bottom: max(16px, env(safe-area-inset-bottom));
  right:  max(16px, env(safe-area-inset-right));
  z-index: 1000;
  background: var(--card, #1e293b);
  color: var(--text, #e2e8f0);
  border: 1px solid var(--border, rgba(255,255,255,.12));
  border-left: 3px solid #0ea5e9;
  border-radius: 8px;
  padding: 10px 14px;
  display: flex;
  gap: 10px;
  align-items: center;
  font-size: 13px;
  box-shadow: 0 8px 24px rgba(0,0,0,.25);
  max-width: 92vw;
}
.pwa-update-banner[hidden] { display: none; }

/* When the app is installed and running standalone, hide the install
   button (it's already installed) and tighten the header for a more
   "app" feel. */
.pwa-standalone .pwa-install-btn { display: none !important; }
.pwa-standalone .brand-sub { display: none; }
@media (display-mode: standalone) {
  body { overscroll-behavior-y: none; }
}

/* iOS hint toast — slightly taller than a normal toast. */
.pwa-ios-hint { max-width: 320px; }

/* Header version cluster (replaces the Settings page "Check for updates"). */
.ver-cluster {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
  margin-right: 6px;
  line-height: 1.1;
}
.ver-row {
  display: flex;
  gap: 6px;
  align-items: center;
}
.ver-current {
  font-size: 10.5px;
  color: rgba(255,255,255,.55);
  font-variant-numeric: tabular-nums;
  letter-spacing: .2px;
}
.ver-check {
  font-size: 10.5px !important;
  padding: 3px 8px !important;
}
.ver-latest {
  font-size: 10px;
  color: rgba(255,255,255,.5);
  white-space: nowrap;
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ver-latest.ver-behind {
  color: #fde68a;
}
.ver-latest.ver-current-ok {
  color: rgba(74,222,128,.85);
}
.ver-latest.ver-err {
  color: #fecaca;
}
.visits-pill {
  font-size: 10px;
  color: rgba(255,255,255,.45);
  font-variant-numeric: tabular-nums;
  letter-spacing: .2px;
  margin-top: 1px;
}

/* Compact the version cluster on small screens to keep the header tidy. */
@media (max-width: 760px) {
  .ver-cluster { margin-right: 2px; }
  .ver-latest { display: none; }
}